Giffords at Democratic convention

Credit: Getty Images

CHARLOTTE, NC - SEPTEMBER 06: Former U.S. Rep. Gabrielle Giffords (D-NV) walks on stage during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate. (Photo by Chip Somodevilla/Getty Images)